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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-11-10 14:53:16 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-10 15:03:29 +1100
commit87655ff26817993932b7d049c4df226fb2c0ac5f (patch)
tree800631fd3ac350595e5be00bd464bf91cd8e9c32 /include/asm-ppc64
parente1449ed956ae29129bde3e5137dde1d579d585ff (diff)
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[PATCH] powerpc: 64k pages pmd alloc fix
This patch makes the kernel use a different kmem cache for PMD pages as they are smaller than PTE pages. Avoids waste of memory. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-ppc64')
-rw-r--r--include/asm-ppc64/pgalloc.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-ppc64/pgalloc.h b/include/asm-ppc64/pgalloc.h
index 98da0e4..dcf3622 100644
--- a/include/asm-ppc64/pgalloc.h
+++ b/include/asm-ppc64/pgalloc.h
@@ -10,8 +10,8 @@ extern kmem_cache_t *pgtable_cache[];
#ifdef CONFIG_PPC_64K_PAGES
#define PTE_CACHE_NUM 0
-#define PMD_CACHE_NUM 0
-#define PGD_CACHE_NUM 1
+#define PMD_CACHE_NUM 1
+#define PGD_CACHE_NUM 2
#else
#define PTE_CACHE_NUM 0
#define PMD_CACHE_NUM 1